The Astoria Marine Construction Company, or AMCCO, site is contaminated with hazardous chemicals from historical ship manufacturing and repair operations. Contamination is in soil on the property and in nearby riverbed sediment in the Lewis and Clark River near the mouth of the Columbia River.
In coordination with AMCCO, tribal governments, and a community advisory group, DEQ selected a remedy in 2017 to clean up contamination on the site and in the adjacent riverbed. AMCCO will implement the cleanup remedy with DEQ oversight. Cleanup will take several months and could occur in summer 2019.
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